Optical observation of the anomalous transient ZTF20aawbodq/AT2020iko

ATel #13857; R. Hosokawa, K. L. Murata, N. Kawai, R. Adachi, M. Niwano, F. Ogawa, N. Nakamura, and Y. Yatsu (Tokyo Tech) report on behalf of the MITSuME collaboration:
on 3 Jul 2020; 08:22 UT
Credential Certification: Katsuhiro Murata (murata@hp.phys.titech.ac.jp)

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We report optical observation of the anomalous transient ZTF20aawbodq/AT2020iko (Soraisam et al., ATel # 13706) with the optical three colors (g', Rc, and Ic) using the MITSuME 50 cm Telescope at Akeno Observatory in Japan.

The object had been first detected with the public ZTF survey and then was reported as a anomalous transient (Soraisam et al., ATel # 13706). Following this, we started to perform follow-up observations in optical wavelengths.

We obtained the preliminary magnitudes of ZTF20aawbodq/AT2020iko as follows:
g'=16.28+/-0.02, Rc=16.67+/-0.02, Ic=16.70+/-0.03 (MJD 58973.47)
g'=16.64+/-0.04, Rc=17.14+/-0.05, Ic=17.03+/-0.07 (MJD 58976.47)
g'=16.82+/-0.03, Rc=17.22+/-0.05, Ic=17.94+/-0.18 (MJD 58977.50)

We used the PS1 catalog for the flux calibration. The magnitudes are expressed in the AB system. We will continue simultaneous multi-color observation with the MITSuME telescopes.

The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al., submitted; https://github.com/MNiwano/Eclair).